反应详情

2.5 g of (5-cyclopropyl-2,4-dimethyl-phenyl)-acetic acid methyl ester in 30 ml of methanol is kept at ice bath temperature and treated with 0.5 g of sodium hydroxide in 5 portions. The reaction mixture is stirred at room temperature for 1.5 hours. The solvent is removed in vacuo, the residue poured into water and extracted with diethyl ether. The combined organic phases are dried with sodium sulfate, filtered and concentrated to afford 2.3 g of (5-cyclopropyl-2,4-dimethyl-phenyl)-acetic acid.

1. customThe solvent is removed in vacuo
2. additionthe residue poured into water
3. extractionextracted with diethyl ether
4. dry with materialThe combined organic phases are dried with sodium sulfate
5. filtrationfiltered
6. concentrationconcentrated